In which of the following adder circuits, the carry look ripple delay

1.	In which of the following adder circuits, the carry look ripple delay is eliminated?
A.	Half adder
B.	Full adder
C.	Parallel adder
D.	Carry-look-ahead adder
E.	None of the above
Answer» E. None of the above

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In which of the following adder circuits, the carry look ripple delay is eliminated?

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